US2448773A

US2448773A - Bobbin marking mechanism

Info

Publication number: US2448773A
Application number: US681100A
Authority: US
Inventors: Clark George
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-07-02
Filing date: 1946-07-02
Publication date: 1948-09-07
Anticipated expiration: 1965-09-07

Description

Sept. 7, G CLARK BOBBIN MARKING MECHAN ISM Filed July 2. 194e 2 Sheets-Sheet 1 INVHVTOR.

m y c fam E R 6 O m W sept. 7, 194s; G, CLARK 2,448,773

BOBBIN MARKING MECHANISM Filed July 2, 1946 2 Sheets-Sheet 2 INVENTOR. GEORGE CIL/IRK Wal/@ A T TURA/Ey Patented Sept. 7, 1948 UNITED STATESl PATENT OFFICE My invention relates to bobbin marking devices ior use on a ller Winder or similar device to apply an identifying mark to the thread or iiller as it is wound on a bobbin.

Many thousands of bobbins are used in the textile industry to receive thread, yarn or ller of different types and sizes. In order to identify those bobbins carrying the same size or type of thread it is usual to apply a mark to the thread on the bobbin-different colors or arrangements of colors being used to identify different sizes and types fof threads. Such marks have heretofore been applied to the thread by hand, but it has been suggested that a marker might be operated by the winding mechanism by which the thread ls wound on the bobbin.

The marking of the filled bobbins by hand is tedious and expensive whereas the mechanism heretofore proposed for marking the bobbins is uncertain in operation and complicated and expensive. Moreover the marker is positioned so that it interferes with the operator when it is necessary to tie a broken thread orvotherwise Work on the machine. Furthermore, marking means lwhich are only moved by gravity into contact with a rotating bobbin tend to bounce or ride over the thread without applying a clear or prominent mark thereto.

'In order to overcome these difficulties VI have developed a type of bobbin marker which is actuated by the winding mechanism but is simple and economical to produce and use and has proven very satisfactory in actual operati-on. The marker is urged toward the bobbin in such a way as to mark the thread clearly and is so positioned that it does not interfere with the normal work of the machine operator.

One of the objects of my invention is to provide a novel type of bobbin marker which is operable by the winding mechanism by which the thread is wound on the bobbin.

Another object of my invention is to provide a bobbin marker in which a marking member is positive in its operation of marking a bobbin.

A further object of my invention is to provide improved means for actuating a bobbin marker on operation of the Winding mechanism by which thread is wound on a bobbin.

Another object of my invention is to provide a bobbin marker which will present no interference to the normal work of the operator.

These and other objects and features of my invention will appear from the following description thereof in which reference is made to the :ligures of the accompanying drawing.

In the drawing: e

Fig. 1 is a side elevation of a typical form of bobbin marking device embodying my invention as seen when applied to a conventional winding mechanism, a portion of the housing for the winding mechanism being broken away.

Fig. 2 is a vertical sectional view through the winding mechanism of Fig. l showing the bobbin marking device in end elevation, and

Figs. 3, 4 and 5 are side elevations of the device illustrated in Fig. 1 as seen from the opposite side of the winding mechanism and showing the marking device in various positions to which it is movable.

In that form of my invention chosen for pur- DOses of illustration in the drawings the winding mechanism shown is of a typical and conventional type such as thatknown as the Whitin- Schweiter automatic filling Winder. In such winding mechanism there is a picker chain 2 which is movable step by step lengthwise of a bobbin 4 rotatably mounted on the spindle 6. A porcelain thread guiding eye 8 is mounted for oscillation on a. stud Il! on the carriage I2 movable by the picker chain 2 so that it will travel lengthwise of the bobbin while being held in position relative to the bobbin by the rods I4 and I8. Movement of the picker chain and thread guiding eye is controlled by a builder I8 which engages the thread which has been Wound -on the bobbin.

The marking device is mounted on the housing 20 which covers and protects the picker chain 2 and other elements for controlling the movement of the guiding eye 8 and builder I8. As shown, the marking device has a base plate 22 from which supports 24 and 28 project upwardly to support a rotatable shaft 28. A marker actuating spring 30 surrounds the shaft 28 adjacent one end thereof and is secured at one end to a collar 32 Liixedly mounted on shaft 28 while its opposite end is secured to a collar 34 rotatably mounted on the shaft 28. An arm 36 carrying a marker 38, whichmay be chalk, crayon or the like, is carried by the collar 34. Spring 38 is tensioned so that it normally tends to rotate the arm 38 and marker 38 in a clockwise direction and to the marking position as seen in Figs. 2 and 5 for marking the bobbin on which thread is being wound. A restoring spring 40 surrounds the opposite end of the shaft 28 and is secured at one end to the support 24 lwhile its opposite end is secured to a collar 42 xedly mounted on the shaft 28. The spring 40 is tensioned so that it normally tends to rotate the shaft 28 in a counterclockwise direction as seen in Fig. 2 to return the arm 38 and marker 38 to their inactive positions shown in Fig. 3.

'I'he movement of the arm 38 and marker 38 is effected by control elements carried by a collar 44 mounted on a sleeve 46 which surrounds the central portion of shaft 28 between the

collars

34 and 42 and is rotatable with respect to the shaft 28. The control elements shown include a bar 48 secured to collar 44 andvarranged so that one end thereof extends into position below the marker arm 36 and the other end is positioned above a pin 58 that projects from the collar 42 fixed to shaft 28. An operating pin 52 projects from the collar 44 and is engageable by actuating means movable with the picker chain of the winding mechanism to rotate the collar 44 and bar 48 in a clockwise direction as seen in Fig. 2 to actuate the marker.

The actuating means preferred are illustrated in Figs. 3, 4 and 5 and consist of the cam member '54 engageable with the operating Ipin 52, and the releasing member 56 engageable with the arm 36 of the marker to hold the marker elevated as shown in Fig. 4 until a predetermined marking interval. The

members

54 and 56 are mounted on a plate 58 secured to the carriage I2 which supports the thread guiding eye 8 and builder i8 and are movable therewith lby the picker chain 2 in a direction longitudinally of the bobbin and with respect to those elements of the marking device mounted on the housing 28 of the winding mechanism as indicated by the arrow in Fig. 3.

When the upper run of the picker chain 12 is moved to the left as seen in Fig. 1 and to the normal position for starting a windingoperation, the control elements assume the position shown in Fig. 3. The arm 36 and marker 38 are then held in raised position by the spring 48 which is tensioned to rotate the collar 32 in a direction to raise the pin 58 upward so that 'bar 48 is urged against the marker arm 36 to hold the arm and marker 38 in the inoperative position shown in Fig. 3.

Thereafter as the thread is wound on the bobbin, the plate 58 is carried by the picker chain of the winding mechanism and to the left as seen in Fig. 3. The cam mem'ber 54 is then brought into engagement with the operating pin 52 on the collar 44 carried by sleeve 46 and forces the operating pin 52 downward so that the collar 44 is rotated in a clockwise direction as seen in Figs. 2 to 5. Bar 48 carried by collar 44 engages pin 58 on collar 42 fixed to shaft 28 and therefore the shaft 28 is rotated causing collar 32 on the opposite end of shaft 28 to rotate in a clockwise direction to tension spring 38. 'I'he tensioning of spring 38 causes the marker arm 36 to move downward with the bar 48 as the bar rotates with collar 44 in a clockwise direction. The marker arm 38 continues to move toward its marking position as bar 48 is depressed until the marker arm engages the releasing mem-ber 58. The elements then approach the position illustrated in Fig. 4.

Shaft 28 is rotated further and serves to increase the tension on spring 38 as the marker arm is held in a raised position by the releasing member 56 while the cam member 54 moves to the left. Continued rotation of the shaft 28 as the cam member 54 moves to the left is eilfected by positioning the cam member and pin 58 on collar 42 so that the cam member will engage pin 58 as it moves beyond the operating pin '52 on collar 44. The elements then assume the position of Fig. 4 wherein cam member 54 engages pin 52 and the releasing member 58 is engaged by marker arm 38 while spring 38 is tensioned by further rotation of shaft 28.

Thereafter upon movement of the picker ch-ain i and the plate 58 further to the left (toward the right as seen in Fig. 1), the releasing member 56 passes from beneath the marker arm 38 to release the arm for movement downward under the action of spring 38 and to the full line position of Figs. 2 and 5. When in the position of Fig. 5 the bar 48 is lowered suiiiciently to permit rotation of the marker arm 36 far enough to bring the markers 38 into engagement with the bobbin and at such time the markers are urged toward the bobbin by the tensioned spring 38. 'I'he markers are thus urged effectively against the thread on the bobbin and cannot bounce or ride freely over the thread without marking the thread clearly.

As the picker chain moves further to the left the cam member 54 moves beyond the pin 58 on collar 32 thereby releasing the collar 32 whereupon the spring 48 serves to rotate the collar 32 and shaft 28 as well as the collar 44 and bar 48 in a counterclockwise direction as seen in Fig. 2. The ba-r 48 then raises the arm 38 and marker 38, returning them to the position of Fig. 3 so that the markers are lifted from the bobbin to assure only momentary but positive marking of the thread. A bumper spring 68 carried by the head 62 xed on shaft 28 is positioned to engage the housing 28 to limit upward movement of the marker arm 36 and to prevent excessive rotation r of shaft 28 in a counterclockwise direction as seen in Fig. 2 under the action of spring 48.

After the picker chain has moved the plate 58 and the

members

54 and 56 beyond the marking device, the chain is returned automatically to the starting position in the normal course of operation of the winding mechanism as the bobbin is filled and ejected. 'Ihe elements are thus restored to their original position preparatory to marking another bobbin.

The particular form of marking device described and shown in the drawing is of further advantage in that the elements are so located at the side of the thread guide and bobbin that they do-not interferewith the work of the operator in tying a broken thread or performing other operations necessary for rapid handling of the work. Furthermore, the marker is pivotally mounted for movement in a plane substantially at right angles to the axis of the bobbin so that it moves back out of the way of the operator as soon as the mark has been applied to the thread. The mark can be located on the bobbin at any point throughout the length thereof and rotation of the bobbin does not impose any laterally directed strains on the marking device. A particular advantage in the construction described resides in the brief but positive operation of the marker which imposes a minimum of resistance to rotation of the bobbin and normal operation of the winding mechanism.

While I have shown and described a preferred form of marking device embodying my invention, it will be apparent that numerous changes and modifications may be made in the form, construction and arrangement of the elements employed, and in View thereof it should be understood that the particular construction shown in the drawings and described above is intended to be illustrative only and is not intended to limit the scope of my invention.-

I claim:

1. A bobbin marking device comprising marking means pivotally mounted adjacent a bobbin to be marked, cam means controlling operation of said marking means, a spring for urging said marking means toward said bobbin, and means actuated by said cam means for tensioning said spring means.

2. A bobbin marking device comprising marking means pivotally mounted adjacent a bobbin to be marked and movable in a plane substantially at right angles to said bobbin, spring means for urging said bobbin marking means toward said bobbin, other spring means for moving said bobbin marking means away from'said bobbin, control means movable longitudinally of said bobbin, for tensioning both of said spring means, releasing means movable with the control means to release said marking means for operation by the first mentioned spring means to mark said bobbin, and other means movable with said control means and responsive to predetermined movement thereof for releasing said other spring means to move said marking means away from a bobbin after completion of a marking operation.

3. Bobbin marking means adapted to be ap` plied to winding mechanism having a picker chain and a housing therefor. comprising a marker; a shaft extending parallel to said bobbin about which said marker is movable, spring means connected to said shaft and marker, and actuating means movable with said picker chain for rotating said shaft in a direction toltension said spring and urge the marker toward the bobbin.

4. Bobbin marking means adapted to be applied to winding mechanism having a picker chain and a housing therefor, comprising a marker. a shaft extending parallel to said bobbin about which said marker is movable.' spring means connected to said shaft and marker,`and actuating means movable with said picker chain for rotating said shaft in a direction to tension said spring and urge the marker toward the. bobbin, and releasing means movable with said actuating means for resisting movement of said marker until said spring means is under predetermined tension. l

5. Bobbin marking means ladapted to bev applied to winding mechanism having a picker chain and a housing therefor, comprising a marker, a shaft extending parallel to said bobbin about which said marker is movable, spring means connected to said shaft and marker, and actuating means movable with said picker chain for rotating said shaft in a direction to tension said. spring and urge the marker toward the bobbin, and releasing means movable with said actuating means for resisting movement of said marker until said spring means is under predetermined tension, and means for restoring said marker to an inoperative position after operation of said marker.

GEORGE CLARK.

REFERENCES CITED UNITED STATES PATENTS Name Date lambert Nov. 27, 1945 Number